Two detectives from the Mercer County Prosecutor’s Office were injured, one seriously, when their car slammed into a pole on Chambers Street while on a police call Monday morning, the Trenton Police Department said. The crash occurred shortly after 9 a.m. as the detectives were responding to an emergency call, but were not pursuing anyone at the time. Their car, headed south on Chambers Street, tried to pass a vehicle, but clipped it, causing their car to strike a utility pole on the driver’s side just before Walnut Avenue, Trenton police spokesman Lt. Gaetano Ponticiello said. The impact also…